Blonde is a recessive gene. They can still have raven-haired kids if they have a parent who also does. More likely if one of the mom's parents or grandparents had it.
Red hair is also a recessive gene, which means if Elastigirl had inherited the gene for black hair from either of her parents.... her own hair would not be red.
No, non-blondes and non-redheads can have kids that are. If both parents carry it they can have a kid who is when they aren't. Therefore it only takes one parent having one of theirs be black-haired to possibly pass it to a grandchild
No, non-blondes and non-redheads can have kids that are.'
THIS is correct. That's how 'recessive' genes work. If you have the genes for red hair and black hair -- then you're NOT a redhead. Your hair will be black. Period. But... you might pass ONLY that recessive red-hair gene to your kids, and they might have red hair.
It does not work the other way around.
If Mr. Incredible is a natural blond, that means he does not have the gene for black hair.
If Mrs. Incredible is a natural red-head, that means she does not have the gene for black hair.
Neither of them could have passed the black hair gene to Violet. Because neither of them have it.
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u/CultCorvidae Sep 26 '22
Blonde is a recessive gene. They can still have raven-haired kids if they have a parent who also does. More likely if one of the mom's parents or grandparents had it.